Activity of Phosphorus Oxide in CaO-MnO-SiO_2-PO_<2.5> (-MgO, Fe_tO) Slags

この論文にアクセスする

この論文をさがす

著者

    • MOMONO Tadashi
    • Department of Materials Science and Engineering, Muroran Institute of Technology

抄録

The CaO–MnO–SiO<sub>2</sub>–PO<sub>2.5</sub>(–MgO, Fe<sub><I>t</I></sub>O) slags were equilibrated with liquid copper alloys in a molybdenum crucible under a flowing CO<sub>2</sub>/H<sub>2</sub> atmosphere in the temperature range of 1573 to 1673 K.<br> The activity coefficient of PO<sub>2.5</sub>, γ<sub>PO<sub>2.5</sub></sub>, and the phosphate capacity, <I>C</I><sub>PO<sub>4</sub><sup>3-</sup></sub>=(%PO<sub>4</sub><sup>3-</sup>)/<I>P</I><sub>P<sub>2</sub></sub><sup>1/2</sup><I>P</I><sub>O<sub>2</sub></sub><sup>5/4</sup>, of the slags were expressed as follows:<br><br>log γ<sub>PO<sub>2.5</sub></sub> = –2.59 {(%CaO)+0.33(%MnO)+0.55(%MgO)–0.90(%Fe<sub><I>t</I></sub>O)–0.77(%PO<sub>2.5</sub>)}/(%SiO<sub>2</sub>)+1400/<I>T</I>–5.75<br>log <I>C</I><sub>PO<sub>4</sub><sup>3-</sup></sub> = 2.60{(%CaO)+0.33(%MnO)+0.55(%MgO)–0.90(%Fe<sub><I>t</I></sub>O)–0.77(%PO<sub>2.5</sub>)}/(%SiO<sub>2</sub>)+40400/<I>T</I>–6.48<br><br> The phosphorus distributions between hot metal and the slag were examined, based on the thermodynamic data obtained in the present study. From comparison with the plant data, it was concluded that the thermodynamic data obtained in the present study are satisfactorily applicable to the thermodynamic assessment of hot metal pretreatment with high MnO slag.

収録刊行物

  • ISIJ international

    ISIJ international 38(8), 781-788, 1998-08-15

    The Iron and Steel Institute of Japan

参考文献:  21件中 1-21件 を表示

  • <no title>

    TAGAYA A.

    Metall. Trans. B 22B, 499, 1991

    被引用文献2件

  • <no title>

    SELIN R.

    Proc. 3rd Int. Conf. on Molten Slags and Fluxes 317, 1989

    被引用文献1件

  • Thermochemical Data of Pure Substances

    BARIN I.

    VHC Verlagsgesellschaft mbH 271,272,560,650,900,1117, 1989

    被引用文献1件

  • <no title>

    IWASE M.

    Steel Res. 56, 319, 1985

    被引用文献3件

  • <no title>

    BAN-YA S.

    Tetsu-to-Hagane 71, 853, 1985

    被引用文献5件

  • <no title>

    PAK J. J.

    Metall. Trans. B 22B, 39, 1991

    被引用文献1件

  • <no title>

    WRAMPELMEYER J.-C.

    Steel Res. 60, 539, 1989

    被引用文献5件

  • <no title>

    WAGNER C.

    Metall. Trans. B 6B, 405, 1975

    被引用文献7件

  • <no title>

    YANG Y.

    Steel Res. 66, 103, 1995

    被引用文献1件

  • <no title>

    TSUKIHASHI F.

    Tetsu-to-Hagane 71, 823, 1985

    被引用文献5件

  • <no title>

    TURKDOGAN E. T.

    J. Iron Steel Inst. 175, 398, 1953

    被引用文献3件

  • <no title>

    HARA T.

    Tetsu-to-Hagane 76, 352, 1990

    被引用文献3件

  • <no title>

    LIU X.

    Steel Res. 66, 96, 1995

    被引用文献1件

  • <no title>

    TABUCHI S.

    Tetsu-to-Hagane 71, 689, 1985

    被引用文献1件

  • <no title>

    SIGWORTH G. K.

    Can. Metall. Q. 13, 455, 1974

    被引用文献5件

  • <no title>

    SIGWORTH G. K.

    Met. Sci. 8, 298, 1974

    被引用文献36件

  • <no title>

    SHIM S. C.

    Steel Res. 65, 523, 1994

    被引用文献1件

  • <no title>

    SUITO H.

    ISIJ Int. 35, 258, 1995

    被引用文献5件

  • <no title>

    ELLIOTT J. F.

    Thermochemistry for Steelmaking II, 501, 1963

    被引用文献2件

  • <no title>

    OGAWA Y.

    CAMP-ISIJ 6, 1074, 1993

    被引用文献5件

  • Manganese and Phosphorus Equilibria between Liquid Copper and MnO-P_2O_5 Slag

    SOBANDI Ahmad , KATAYAMA Hiroshi G. , MOMONO Tadashi

    ISIJ international 37(11), 1043-1049, 1997-11-15

    J-STAGE DOI 参考文献9件 被引用文献5件

被引用文献:  3件中 1-3件 を表示

各種コード

ページトップへ